Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

32°F

0°C

Humidity 100%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 10 Dec 03:06 AM PST
Extended Forecast for

4 Miles W Winthrop WA

  • Overnight

    Overnight: Rain.  Steady temperature around 35. Light east wind.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 43. Calm wind becoming north 5 to 7 mph in the morning.  Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    High: 43 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly before 4am.  Low around 34. Northwest wind 6 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Rain

  • Thursday

    Thursday: A 30 percent chance of rain before 10am.  Partly sunny, with a high near 42. Northwest wind around 6 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Chance Rain
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow.  Mostly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 10am, then a chance of rain.  Partly sunny, with a high near 42. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain.  Mostly cloudy, with a high near 39.

    High: 39 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

Detailed Forecast

Overnight
Rain. Steady temperature around 35. Light east wind. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. High near 43. Calm wind becoming north 5 to 7 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain, mainly before 4am. Low around 34. Northwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of rain before 10am. Partly sunny, with a high near 42. Northwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 10am, then a chance of rain. Partly sunny, with a high near 42. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 39.
Saturday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 31.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 40.
Sunday Night
Rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Monday
Rain. High near 38. Chance of precipitation is 80%.
Monday Night
Rain, possibly mixed with snow. Low around 31. Chance of precipitation is 90%.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Winthrop WA
 48.47°N 120.25°W (Elev. 2743 ft)
2:58 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

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